Winterizing a car for Connecticut winters

Connecticut winters do not kill cars in January. They kill cars in the first cold snap of November, when the battery that was borderline all summer finally has to crank cold oil.

A real battery load test tells you what a voltmeter cannot. Twelve point six volts at rest means nothing if the internal resistance has climbed. We load-test before the cold, not after you are stranded in the East Side parking lot at 6 AM.

Coolant strength matters more than people think. The mix protects against freeze and boil-over, but it also carries corrosion inhibitors that deplete. A five-year-old mix that still tests to minus 30 is doing nothing for the water pump and heater core.

Tire pressure drops roughly one pound for every ten degrees of temperature fall. The light that comes on the first cold morning is often correct, and the tire is not sealed. Check them cold, fill them cold, and stop trusting the gauge on the hose at the gas station.

The forgotten hose is the one to the rear washer. It runs under the car and freezes where it dips. Run washer fluid rated for cold, not the summer bottle that has been in the jug since June.